./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0680b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0680b.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f89b3bbad42595f1a07c6d5289633d238961847556efb64250e94df2ad8dde4b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:37:02,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:37:02,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 18:37:02,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:37:02,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:37:02,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:37:02,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:37:02,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:37:02,987 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:37:02,987 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:37:02,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:37:02,988 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:37:02,988 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:37:02,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:37:02,988 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:37:02,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:37:02,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:37:02,989 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:37:02,989 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 18:37:02,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:37:02,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:37:02,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:37:02,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:37:02,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:37:02,990 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:37:02,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:37:02,990 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:37:02,990 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:37:02,990 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:37:02,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:37:02,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:37:02,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:37:02,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:37:02,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:37:02,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:37:02,992 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:37:02,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:37:02,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 18:37:02,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 18:37:02,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:37:02,992 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:37:02,992 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:37:02,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:37:02,993 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f89b3bbad42595f1a07c6d5289633d238961847556efb64250e94df2ad8dde4b [2025-02-07 18:37:03,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:37:03,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:37:03,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:37:03,250 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:37:03,251 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:37:03,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0680b.c [2025-02-07 18:37:04,621 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/42cee90e4/1714857ec461488f9a0489320a21091c/FLAG25d631464 [2025-02-07 18:37:04,949 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:37:04,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680b.c [2025-02-07 18:37:04,959 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/42cee90e4/1714857ec461488f9a0489320a21091c/FLAG25d631464 [2025-02-07 18:37:04,980 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/42cee90e4/1714857ec461488f9a0489320a21091c [2025-02-07 18:37:04,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:37:04,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:37:04,989 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:37:04,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:37:04,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:37:04,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:37:04" (1/1) ... [2025-02-07 18:37:04,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef3eaba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:04, skipping insertion in model container [2025-02-07 18:37:04,997 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:37:04" (1/1) ... [2025-02-07 18:37:05,020 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:37:05,215 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680b.c[6162,6175] [2025-02-07 18:37:05,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:37:05,232 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:37:05,291 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680b.c[6162,6175] [2025-02-07 18:37:05,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:37:05,315 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:37:05,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05 WrapperNode [2025-02-07 18:37:05,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:37:05,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:37:05,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:37:05,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:37:05,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (1/1) ... [2025-02-07 18:37:05,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (1/1) ... [2025-02-07 18:37:05,372 INFO L138 Inliner]: procedures = 20, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 312 [2025-02-07 18:37:05,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:37:05,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:37:05,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:37:05,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:37:05,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (1/1) ... [2025-02-07 18:37:05,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (1/1) ... [2025-02-07 18:37:05,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (1/1) ... [2025-02-07 18:37:05,403 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-02-07 18:37:05,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (1/1) ... [2025-02-07 18:37:05,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (1/1) ... [2025-02-07 18:37:05,424 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (1/1) ... [2025-02-07 18:37:05,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (1/1) ... [2025-02-07 18:37:05,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (1/1) ... [2025-02-07 18:37:05,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (1/1) ... [2025-02-07 18:37:05,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:37:05,439 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:37:05,439 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:37:05,439 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:37:05,440 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (1/1) ... [2025-02-07 18:37:05,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:37:05,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:37:05,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 18:37:05,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 18:37:05,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:37:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-07 18:37:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2025-02-07 18:37:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 18:37:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2025-02-07 18:37:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-07 18:37:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2025-02-07 18:37:05,499 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2025-02-07 18:37:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2025-02-07 18:37:05,500 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2025-02-07 18:37:05,500 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2025-02-07 18:37:05,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:37:05,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:37:05,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-07 18:37:05,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2025-02-07 18:37:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 18:37:05,619 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:37:05,620 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:37:05,786 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L76: havoc ~low~0; [2025-02-07 18:37:06,151 INFO L? ?]: Removed 83 outVars from TransFormulas that were not future-live. [2025-02-07 18:37:06,151 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:37:06,190 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:37:06,190 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:37:06,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:37:06 BoogieIcfgContainer [2025-02-07 18:37:06,191 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:37:06,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:37:06,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:37:06,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:37:06,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:37:04" (1/3) ... [2025-02-07 18:37:06,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da9eb41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:37:06, skipping insertion in model container [2025-02-07 18:37:06,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:05" (2/3) ... [2025-02-07 18:37:06,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da9eb41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:37:06, skipping insertion in model container [2025-02-07 18:37:06,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:37:06" (3/3) ... [2025-02-07 18:37:06,200 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680b.c [2025-02-07 18:37:06,213 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:37:06,215 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0680b.c that has 3 procedures, 136 locations, 1 initial locations, 16 loop locations, and 9 error locations. [2025-02-07 18:37:06,274 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:37:06,283 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c3845a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:37:06,283 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-02-07 18:37:06,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 118 states have (on average 1.7457627118644068) internal successors, (206), 129 states have internal predecessors, (206), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 18:37:06,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-07 18:37:06,291 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:37:06,291 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-07 18:37:06,292 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fabs_doubleErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, fabs_doubleErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, atan_doubleErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 6 more)] === [2025-02-07 18:37:06,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:37:06,298 INFO L85 PathProgramCache]: Analyzing trace with hash 9294750, now seen corresponding path program 1 times [2025-02-07 18:37:06,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:37:06,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722811207] [2025-02-07 18:37:06,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:37:06,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:37:06,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-07 18:37:06,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-07 18:37:06,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:37:06,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:37:06,455 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 18:37:06,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-07 18:37:06,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-07 18:37:06,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:37:06,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:37:06,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 18:37:06,533 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 18:37:06,535 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE (8 of 9 remaining) [2025-02-07 18:37:06,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fabs_doubleErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (7 of 9 remaining) [2025-02-07 18:37:06,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fabs_doubleErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (6 of 9 remaining) [2025-02-07 18:37:06,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location atan_doubleErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (5 of 9 remaining) [2025-02-07 18:37:06,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location atan_doubleErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 9 remaining) [2025-02-07 18:37:06,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2025-02-07 18:37:06,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 9 remaining) [2025-02-07 18:37:06,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 9 remaining) [2025-02-07 18:37:06,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 9 remaining) [2025-02-07 18:37:06,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 18:37:06,544 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-07 18:37:06,569 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:37:06,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:37:06 BoogieIcfgContainer [2025-02-07 18:37:06,575 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:37:06,576 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:37:06,577 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:37:06,577 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:37:06,578 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:37:06" (3/4) ... [2025-02-07 18:37:06,580 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 18:37:06,581 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:37:06,582 INFO L158 Benchmark]: Toolchain (without parser) took 1598.32ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 103.3MB in the end (delta: 9.2MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2025-02-07 18:37:06,583 INFO L158 Benchmark]: CDTParser took 1.28ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:37:06,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.60ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 97.6MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:37:06,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.34ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 95.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:37:06,584 INFO L158 Benchmark]: Boogie Preprocessor took 66.05ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 92.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:37:06,584 INFO L158 Benchmark]: IcfgBuilder took 751.43ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 57.7MB in the end (delta: 35.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-07 18:37:06,584 INFO L158 Benchmark]: TraceAbstraction took 381.99ms. Allocated memory is still 142.6MB. Free memory was 57.2MB in the beginning and 103.3MB in the end (delta: -46.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:37:06,584 INFO L158 Benchmark]: Witness Printer took 5.20ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 103.3MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:37:06,586 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.60ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 97.6MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.34ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 95.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 66.05ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 92.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 751.43ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 57.7MB in the end (delta: 35.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 381.99ms. Allocated memory is still 142.6MB. Free memory was 57.2MB in the beginning and 103.3MB in the end (delta: -46.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.20ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 103.3MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 150]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 150, overapproximation of someUnaryDOUBLEoperation at line 54. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = -0.0; [L254] double y = 0.0; [L255] CALL __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, y=0, zero_atan2=0] [L154] COND TRUE 0 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, y=0, zero_atan2=0] [L150] ieee_double_shape_type ew_u; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, y=0, zero_atan2=0] - UnprovableResult [Line: 27]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 258]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 232]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 227]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 157]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 136 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-07 18:37:06,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0680b.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f89b3bbad42595f1a07c6d5289633d238961847556efb64250e94df2ad8dde4b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:37:09,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:37:09,138 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 18:37:09,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:37:09,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:37:09,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:37:09,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:37:09,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:37:09,183 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:37:09,183 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:37:09,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:37:09,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:37:09,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:37:09,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:37:09,183 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:37:09,184 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:37:09,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:37:09,184 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:37:09,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:37:09,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:37:09,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:37:09,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:37:09,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:37:09,184 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 18:37:09,187 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 18:37:09,187 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 18:37:09,187 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:37:09,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:37:09,188 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:37:09,188 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:37:09,189 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:37:09,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:37:09,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:37:09,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:37:09,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:37:09,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:37:09,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:37:09,190 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:37:09,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:37:09,190 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 18:37:09,190 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 18:37:09,191 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:37:09,191 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:37:09,191 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:37:09,191 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:37:09,191 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f89b3bbad42595f1a07c6d5289633d238961847556efb64250e94df2ad8dde4b [2025-02-07 18:37:09,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:37:09,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:37:09,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:37:09,514 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:37:09,514 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:37:09,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0680b.c [2025-02-07 18:37:10,968 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f5635e5ab/92e3a0e8ea884d15abeab82f2a26956e/FLAGca7cfe538 [2025-02-07 18:37:11,237 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:37:11,239 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680b.c [2025-02-07 18:37:11,249 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f5635e5ab/92e3a0e8ea884d15abeab82f2a26956e/FLAGca7cfe538 [2025-02-07 18:37:11,272 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f5635e5ab/92e3a0e8ea884d15abeab82f2a26956e [2025-02-07 18:37:11,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:37:11,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:37:11,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:37:11,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:37:11,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:37:11,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b5cfbc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11, skipping insertion in model container [2025-02-07 18:37:11,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,307 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:37:11,537 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680b.c[6162,6175] [2025-02-07 18:37:11,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:37:11,564 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:37:11,628 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680b.c[6162,6175] [2025-02-07 18:37:11,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:37:11,651 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:37:11,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11 WrapperNode [2025-02-07 18:37:11,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:37:11,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:37:11,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:37:11,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:37:11,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,699 INFO L138 Inliner]: procedures = 23, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 221 [2025-02-07 18:37:11,700 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:37:11,701 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:37:11,701 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:37:11,701 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:37:11,710 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,715 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,736 INFO L175 MemorySlicer]: Split 59 memory accesses to 12 slices as follows [2, 7, 2, 7, 23, 2, 3, 3, 3, 3, 2, 2]. 39 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 4, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0]. The 22 writes are split as follows [0, 0, 1, 0, 12, 1, 1, 2, 2, 1, 1, 1]. [2025-02-07 18:37:11,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,768 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,792 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:37:11,794 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:37:11,794 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:37:11,795 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:37:11,796 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (1/1) ... [2025-02-07 18:37:11,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:37:11,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:37:11,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 18:37:11,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 18:37:11,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:37:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2025-02-07 18:37:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2025-02-07 18:37:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2025-02-07 18:37:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2025-02-07 18:37:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2025-02-07 18:37:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2025-02-07 18:37:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2025-02-07 18:37:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2025-02-07 18:37:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8 [2025-02-07 18:37:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9 [2025-02-07 18:37:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#10 [2025-02-07 18:37:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#11 [2025-02-07 18:37:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2025-02-07 18:37:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2025-02-07 18:37:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#2 [2025-02-07 18:37:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#3 [2025-02-07 18:37:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#4 [2025-02-07 18:37:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#5 [2025-02-07 18:37:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#6 [2025-02-07 18:37:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#7 [2025-02-07 18:37:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#8 [2025-02-07 18:37:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#9 [2025-02-07 18:37:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#10 [2025-02-07 18:37:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#11 [2025-02-07 18:37:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2025-02-07 18:37:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2025-02-07 18:37:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2025-02-07 18:37:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2025-02-07 18:37:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2025-02-07 18:37:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2025-02-07 18:37:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#10 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#11 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2025-02-07 18:37:11,861 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2025-02-07 18:37:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#10 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#11 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2025-02-07 18:37:11,862 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2025-02-07 18:37:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2025-02-07 18:37:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2025-02-07 18:37:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2025-02-07 18:37:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2025-02-07 18:37:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:37:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:37:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-07 18:37:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-07 18:37:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-07 18:37:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-02-07 18:37:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-02-07 18:37:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-02-07 18:37:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2025-02-07 18:37:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2025-02-07 18:37:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2025-02-07 18:37:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2025-02-07 18:37:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2025-02-07 18:37:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2025-02-07 18:37:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 18:37:12,083 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:37:12,085 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:37:44,328 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L76: havoc ~low~0; [2025-02-07 18:38:05,112 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live. [2025-02-07 18:38:05,113 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:38:05,122 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:38:05,123 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:38:05,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:38:05 BoogieIcfgContainer [2025-02-07 18:38:05,124 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:38:05,127 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:38:05,127 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:38:05,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:38:05,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:37:11" (1/3) ... [2025-02-07 18:38:05,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d67aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:38:05, skipping insertion in model container [2025-02-07 18:38:05,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:37:11" (2/3) ... [2025-02-07 18:38:05,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d67aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:38:05, skipping insertion in model container [2025-02-07 18:38:05,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:38:05" (3/3) ... [2025-02-07 18:38:05,137 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680b.c [2025-02-07 18:38:05,149 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:38:05,150 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0680b.c that has 3 procedures, 81 locations, 1 initial locations, 8 loop locations, and 1 error locations. [2025-02-07 18:38:05,199 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:38:05,212 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4888299b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:38:05,212 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 18:38:05,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 71 states have (on average 1.7464788732394365) internal successors, (124), 74 states have internal predecessors, (124), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 18:38:05,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-07 18:38:05,225 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:38:05,226 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:38:05,226 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 18:38:05,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:38:05,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1841291521, now seen corresponding path program 1 times [2025-02-07 18:38:05,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 18:38:05,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220755843] [2025-02-07 18:38:05,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:38:05,245 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 18:38:05,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 18:38:05,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-07 18:38:05,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-02-07 18:38:05,412 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-07 18:38:05,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-07 18:38:05,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:38:05,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:38:05,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 18:38:05,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 18:38:05,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 18:38:05,745 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 18:38:05,745 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 18:38:05,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220755843] [2025-02-07 18:38:05,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220755843] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:38:05,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:38:05,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 18:38:05,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733426353] [2025-02-07 18:38:05,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:38:05,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 18:38:05,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 18:38:05,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 18:38:05,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 18:38:05,778 INFO L87 Difference]: Start difference. First operand has 81 states, 71 states have (on average 1.7464788732394365) internal successors, (124), 74 states have internal predecessors, (124), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 18:38:05,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:38:05,805 INFO L93 Difference]: Finished difference Result 160 states and 267 transitions. [2025-02-07 18:38:05,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 18:38:05,807 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2025-02-07 18:38:05,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:38:05,813 INFO L225 Difference]: With dead ends: 160 [2025-02-07 18:38:05,813 INFO L226 Difference]: Without dead ends: 70 [2025-02-07 18:38:05,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 18:38:05,818 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 18:38:05,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 18:38:05,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2025-02-07 18:38:05,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2025-02-07 18:38:05,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 64 states have (on average 1.25) internal successors, (80), 64 states have internal predecessors, (80), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-07 18:38:05,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2025-02-07 18:38:05,848 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 19 [2025-02-07 18:38:05,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:38:05,848 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2025-02-07 18:38:05,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 18:38:05,848 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2025-02-07 18:38:05,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-02-07 18:38:05,849 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:38:05,849 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:38:05,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-02-07 18:38:06,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 18:38:06,050 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 18:38:06,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:38:06,051 INFO L85 PathProgramCache]: Analyzing trace with hash 405401122, now seen corresponding path program 1 times [2025-02-07 18:38:06,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 18:38:06,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100360611] [2025-02-07 18:38:06,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:38:06,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 18:38:06,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 18:38:06,055 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-07 18:38:06,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-02-07 18:38:06,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-07 18:38:06,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-07 18:38:06,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:38:06,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:38:06,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-07 18:38:06,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 18:38:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 18:38:15,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 18:38:15,829 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 18:38:15,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100360611] [2025-02-07 18:38:15,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100360611] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:38:15,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:38:15,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-07 18:38:15,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799782221] [2025-02-07 18:38:15,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:38:15,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-07 18:38:15,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 18:38:15,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-07 18:38:15,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-07 18:38:15,831 INFO L87 Difference]: Start difference. First operand 70 states and 86 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 18:38:19,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-07 18:38:23,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-07 18:38:27,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-07 18:38:31,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-07 18:38:35,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]